mirror of https://github.com/grpc/grpc.git
The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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47 lines
2.2 KiB
47 lines
2.2 KiB
4 years ago
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rake-compiler-dock for gRPC
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===================================
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This has customized docker images for Ruby based on
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[rake-compiler-dock](https://github.com/rake-compiler/rake-compiler-dock).
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gRPC needs four docker images to build Ruby artifacts;
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- rake_x64-linux: Linux / 32bit
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- rake_x86_64-linux: Linux / 64bit
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- rake_x86-mingw32: Windows / 32bit
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- rake_x64-mingw32: Windows / 64bit
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### Customization
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#### Linux
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The linux docker images of `rake-compiler-dock` are based on Ubuntu, which is enough for
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most cases but it becomes hard to keep it compataible for some conservative Linux distrubitions
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such as CentOS 6 because Ubuntu uses more modern libraries than them.
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As a result, generated artifacts sometimes cannot run on CentOS 6 due to missing dependencies.
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This can be easily addressed by using CentOS 6 based docker images such as
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[dockcross manylinux2010](https://github.com/dockcross/dockcross), which was invented
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to handle the very same problem of Python. By using the same solution,
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Ruby can have the simple way of building more portable artifacts.
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This idea is summarized in
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[rake-compiler-dock#33](https://github.com/rake-compiler/rake-compiler-dock/issues/33).
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These two new docker images; `rake_x64-linux` and `rake_x86_64-linux` are based on
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[Dockerfile.mri.erb](https://github.com/rake-compiler/rake-compiler-dock/blob/master/Dockerfile.mri.erb)
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with following customizations;
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- Changing the base image from `ubuntu:16.04` to `dockcross/manylinux2010`
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- Removing rvm account due to the complexity of having the same thing on `manylinux2010`
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(mainly due to the limit of `gosu` handling groups)
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- Removing cross compiling setup for x86 because `manylinux2010-x86` already did it.
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(like cross compilers for x86 and mk_i686)
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- Removing glibc hack because `manylinux2010` doesn't needit.
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- Adding `patchelf_gem.sh` to trim the unnecessary dependency of `libcrypt.so.2`.
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Without this, artifacts for Ruby 2.3 to 2.5 happens to have a `libcrypt.so.2` link although
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it doesn't have any external symbols from it.
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#### Windows
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Windows docker images are almost identical to `rake-compiler-dock` but with some exception;
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- Renaming `gettimeofday` to `rb_gettimeofday` in `win32.h`
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